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# Principal Software Engineer (MacOS) - Remote EU

- **Company:** Malwarebytes
- **Location:** Santa Clara, CA, United States (Remote available)
- **Salary:** $100,000
- **Contract:** Permanent contract
- **Skills:** Apple Mac Systems, Apple Xcode, Software Debugging, Programming Tools, Network Security, Objective-C (Programming Language), Object-Oriented Software Development, Secure Coding, Systems Architecture, Systems Integration, Software Vulnerability Management, Backend, Data Management
- **Published:** November 5, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/pwo9qqn9ec

## About the Role

Understanding of Object-Oriented development practices

Experience working with Apple's System Extensions and Network Extension frameworks

Ability to work on a high-performance team in a high-tech startup or startup-like environment

Working knowledge of Swift and/or Objective-c coding languages

Experience with backend development on macOS, including data management, networking, and system integrations

Ability to debug and optimize macOS applications for performance

Familiarity with foundational macOS frameworks and development tools, including Foundation, Xcode, Instruments, and LLDB

Strong understanding of macOS system architecture and internals

Familiarity with macOS security and distribution requirements, including code signing, entitlements, sandboxing, privacy permissions, and notarization

Ability to debug, profile, and optimize macOS applications for performance, reliability, and resource efficiency

Good To Have

Understanding of cybersecurity principles, including least privilege, defense in depth, secure-by-default design, threat modeling, and attack-surface reduction

Familiarity with secure coding practices, vulnerability management, and common application and network security risks

Familiarity with Apple platform deployment and management technologies, including MDM and configuration profiles